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| 1 | 东非不同肉色甘薯的营养品质分析与综合评价显示文摘以东非市售的9份不同肉色甘薯(3个橙肉,1个黄肉,3个淡黄肉和2个白肉)为研究对象,采用常规化学分析法,测定不同肉色甘薯主要营养品质指标,结合质构分析和感官评定,综合评价其加工品质.结果显示:除脂肪含量外,薯块的营养品质指标均有一定差异,其中β胡萝卜素、花青素、维生素C与锌离子含量变异系数较大,橙肉甘薯中β胡萝卜素、水分和酚类化合物等含量显著高于其他肉色,而淀粉和碳水化合物含量较其他肉色低;薯块各营养品质指标间有一定相关性,既相互独立又关系复杂;除弹性特征外,不同肉色甘薯质构特性间差异显著,且与感官指标具有显著的相关性,橙肉甘薯与其他肉色相比,硬度和咀嚼性偏小,黏附性、内聚性偏大.感官评定结果表明,东非百姓更喜欢口感偏硬,面度较大,色泽偏淡的品种;橙肉甘薯受色泽、香味和面度等因素影响,接受度不及参试的其他肉色甘薯. | 张毅 Tawanda Muzhingi 岳瑞雪 孙健 张文婷 朱红 钮福祥 | 2020 | 江苏师范大学学报(自然科学版)2020,38,2: | 14 |
| 2 | PEAK关系训练系统:孤独症语言障碍康复的新方法显示文摘PEAK (Promoting the Emergence of Advanced Knowledge,促进高阶知识涌现)关系训练系统是全球首个同时整合了斯金纳的《言语行为》和后斯金纳主义的“关系框架理论”,促进孤独症谱系障碍(Autism spectrumdisorders, ASD)患者的语言、学习、社交等核心技能发展的语言行为评估训练系统。截至2018 年底, PEAK 关系训练系统由以下4 个模块组成:直接训练模块、泛化模块、等价关系模块、功能转化模块。每一模块依据难易程度分别设置了184 个目标能力的评估方法及训练课程。已发表的多项实证研究表明, PEAK 关系训练系统打破了《语言行为里程碑评估及安置程序》(Verbal Behavior Milestones and Placement Program, VB-MAPP)对ASD 患者进行里程碑评估时出现的“天花板效应”,有望比VB-MAPP 提供更全面、高阶的语言行为评估体系。此外, PEAK 关系训练系统表现出的评估工具的信效度良好、多项效果研究显著、实践中易操作等特性,使其不仅适用于专业人员教学,未来在ASD 患者家庭干预模式中也有潜在的应用价值。 | 白晓宇 Tawanda S.Mutusva 祝卓宏 | 2019 | 心理科学进展2019,27,11: | 6 |
| 3 | Machine learning methods’ performance in radiative transfer model inversion to retrieve plant traits from Sentinel-2 data of a mixed mountain forest显示文摘Assessment of vegetation biochemical and biophysical variables is useful when developing indicators for biodiversity monitoring and climate change studies.Here,we compared a radiative transfer model(RTM)inversion by merit function and five machine learning algorithms trained on an RTM simulated dataset predicting the three plant traits leaf chlorophyll content(LCC),canopy chlorophyll content(CCC),and leaf area index(LAI),in a mixed temperate forest.The accuracy of the retrieval methods in predicting these three plant traits with spectral data from Sentinel-2 acquired on 13 July 2017 over Bavarian Forest National Park,Germany,was evaluated using in situ measurements collected contemporaneously.The RTM inversion using merit function resulted in estimations of LCC(R^(2)=0.26,RMSE=3.9µg/cm^(2)),CCC(R^(2)=0.65,RMSE=0.33 g/m^(2)),and LAI(R^(2)=0.47,RMSE=0.73 m^(2)/m^(2)),comparable to the estimations based on the machine learning method Random forest regression of LCC(R^(2)=0.34,RMSE=4.06µg/cm^(2)),CCC(R^(2)=0.65,RMSE=0.34 g/m^(2)),and LAI(R^(2)=0.47,RMSE=0.75 m^(2)/m^(2)).Several of the machine learning algorithms also yielded accuracies and robustness similar to the RTM inversion using merit function.The performance of regression methods trained on synthetic datasets showed promise for fast and accurate mapping of plant traits accross different plant functional types from remote sensing data. | Abebe Mohammed Ali Roshanak Darvishzadeh Andrew Skidmore Tawanda W.Gara Marco Heurich | 2021 | International Journal of Digital Earth2021,14,1: | 3 |
| 4 | Efficacy of praziquantel on Schistosoma haematobium and re-infection rates among school-going children in the Ndumo area of uMkhanyakude district,KwaZulu-Natal,South Africa显示文摘Background:Despite its low cure rates and possible resistance,praziquantel(PZQ)is the only drug available for schistosomiasis treatment.Hence,monitoring its efficacy is crucial.This study assessed the efficacy of PZQ,determined re-infection and incidence rates of Schistosoma haematobium infection among school-going children in the Ndumo area,KwaZulu-Natal.Methods:A cohort of 320 school-going children(10-15 years)in 10 primary schools was screened for S.haematobium infection using the filtration technique.Infected children were treated at different times and hence were divided into two sub-cohorts;A1 and A2.Non-infected children constituted the sub-cohort B.Children who continued excreting viable eggs 4 weeks post-treatment received a second dose of PZQ.Re-infection rates were determined in sub-cohort A1 and A2 at 28 and 20 weeks post-treatment,respectively.Cure rates(CR)and egg reduction rates(ERR)were calculated.Incidence rate was assessed 28 weeks post baseline survey using children that were negative for schistosome eggs at that survey.Analysis of data was done using the Chi square and the Wilcoxon rank test.A 95%confidence interval with a P-value<0.05 determined significance.Results:At baseline,120(37.5%)of the 320 study participants were found infected with Schistosoma haematobium.Heavy infections accounted for 36.7%.The calculated cure rates were 88.07%and 82.92%for females and males,respectively.Egg Reduction Rates of 80%and 64%for females and males were observed 4 weeks after the initial treatment.After the second treatment,CR was 100%in females and 50%in males with an ERR of 100%in females and 70%in males.At 20 and 28 weeks post treatment,reinfection rates of 8.03%and 8.00%were observed,respectively,giving an overall rate of 8.1%.An incidence rate of 4.1%was observed 28 weeks after the baseline screening.Conclusions:The study indicated high CR while the ERR was low suggesting a reduced PZQ efficacy.The efficacy improved among females after the second dose.Re-infection rates at 20 and 28 weeks posttreatment were low.The study also indicated a low incidence rate for the 28 weeks period. | Muhubiri Kabuyaya Moses John Chimbari Tawanda Manyangadze Samson Mukaratirwa | 2017 | Infectious Diseases of Poverty2017,6,1: | 3 |
| 5 | Data and tools to integrate climate and environmental information into public health显示文摘Background:During the last 30 years,the development of geographical information systems and satellites for Earth observation has made important progress in the monitoring of the weather,climate,environmental and anthropogenic factors that influence the reduction or the reemergence of vector-borne diseases.Analyses resulting from the combination of geographical information systems(GIS)and remote sensing have improved knowledge of climatic,environmental,and biodiversity factors influencing vector-borne diseases(VBDs)such as malaria,visceral leishmaniasis,dengue,Rift Valley fever,schistosomiasis,Chagas disease and leptospirosis.These knowledge and products developed using remotely sensed data helped and continue to help decision makers to better allocate limited resources in the fight against VBDs.Main body:Because VBDs are linked to climate and environment,we present here our experience during the last four years working with the projects under the,World Health Organization(WHO)/The Special Programme for Research and Training in Tropical Diseases(TDR)-International Development Research Centre(IDRC)Research Initiative on VBDs and Climate Change to integrate climate and environmental information into research and decision-making processes.The following sections present the methodology we have developed,which uses remote sensing to monitor climate variability,environmental conditions,and their impacts on the dynamics of infectious diseases.We then show how remotely sensed data can be accessed and evaluated and how they can be integrated into research and decision-making processes for mapping risks,and creating Early Warning Systems,using two examples from the WHO TDR projects based on schistosomiasis analysis in South Africa and Trypanosomiasis in Tanzania.Conclusions:The tools presented in this article have been successfully used by the projects under the WHO/TDRIDRC Research Initiative on VBDs and Climate Change.Combined with capacity building,they are an important piece of work which can significantly contribute to the goals of WHO Global Vector Control Response and to the Sustainable Development Goals especially those on health and climate action. | Pietro Ceccato Bernadette Ramirez Tawanda Manyangadze Paul Gwakisa Madeleine C.Thomson | 2018 | Infectious Diseases of Poverty2018,7,1: | 2 |
| 6 | Serum Drug Concentrations Predictive of Pulmonary Tuberculosis Outcomes显示文摘 | Jotam G. Pasipanodya Helen McIlleron André Burger Peter A. Wash Peter Smith Tawanda Gumbo | 2013 | Journal of Infectious Diseases2013,,9: | 1 |
| 7 | Method for predicting long-term average performance of photovoltaic systems显示文摘 | | 2000 | Renewable Energy2000,21,2: | 1 |
| 8 | Hepatitis E virus: Western Cape, South Africa显示文摘AIM To conduct a prospective assessment of anti-hepatitis E virus(HEV) Ig G seroprevalence in the Western Cape Province of South Africa in conjunction with evaluating risk factors for exposure.METHODS Consenting participants attending clinics and wards of Groote Schuur, Red Cross Children's Hospital and their affiliated teaching hospitals in Cape Town, South Africa, were sampled. Healthy adults attending blood donor clinics were also recruited. Patients with known liver disease were excluded and all major ethnic/race groups were included to broadly represent local demographics. Relevant demographic data was captured at the time of sampling using an interviewer-administered confidential questionnaire. Human immunodeficiency virus(HIV) status was self-disclosed. HEV Ig G testing was performed using the Wantai? assay.RESULTS HEV is endemic in the region with a seroprevalence of 27.9%(n = 324/1161) 95%CI: 25.3%-30.5%(21.9% when age-adjusted) with no significant differences between ethnic groups or HIV status. Seroprevalence in children is low but rapidly increases in early adulthood. With univariate analysis, age ≥ 30 years old, pork and bacon/ham consumption suggested risk. In the multivariate analysis, the highest risk factor for HEV Ig G seropositivity(OR = 7.679, 95%CI: 5.38-10.96, P < 0.001) was being 30 years or older followed by pork consumption(OR = 2.052, 95%CI: 1.39-3.03, P < 0.001). A recent clinical case demonstrates that HEV genotype 3 may be currently circulating in the Western Cape.CONCLUSION Hepatitis E seroprevalence was considerably higher than previously thought suggesting that hepatitis E warrants consideration in any patient presenting with an unexplained hepatitis in the Western Cape, irrespective of travel history, age or ethnicity. | Richie G Madden Sebastian Wallace Mark Sonderup Stephen Korsman Tawanda Chivese Bronwyn Gavine Aniefiok Edem Roxy Govender Nathan English Christy Kaiyamo Odelia Lutchman Annemiek A van der Eijk Suzan D Pas Glynn W Webb Joanne Palmer Elizabeth Goddard Sean Wasserman Harry R Dalton C Wendy Spearman | 2016 | World Journal of Gastroenterology2016,22,44: | 0 |
| 9 | 图的规范拉普拉斯谱与优超显示文摘令G是简单图.记L(G)为图G的规范拉普拉斯矩阵,其特征值称为图的规范拉普拉斯特征值.[Adv.Math.(China),2017,46(6):848-856]给出了关于规范拉普拉斯特征值和的相关结论,并提出相关猜想.我们发现在上述文章中的一些重要结果中存在一些错误.本文修正了所有不正确的结果.此外,我们讨论了£(G)的特征值优超不等式.利用这些结果,我们证实了[Adv.Math.(China),2017,46(6):848-8561中提出的一个猜想. | 孙少伟 Ralph Tichafa Tawanda CHAWATAMA | 2022 | 数学进展2022,51,1: | 0 |
| 10 | Spatial Heterogeneity Association of HIV Incidence with Socio-economic Factors in Zimbabwe显示文摘This study examined the spatial heterogeneity association of HIV incidence and socio-economic factors including poverty severity index,permanently employed females and males,unemployed females,percentage of poor households i.e.,poverty prevalence,night lights index,literacy rate,household food security,and Gini index at district level in Zimbabwe.A mix of spatial analysis methods including Poisson model based on original log likelihood ratios(LLR),global Moran’s I,local indicator of spatial association-LISA were employed to determine the HIV hotspots.Geographically Weighted Poisson Regression(GWPR)and semi-parametric GWPR(s-GWPR)were used to determine the spatial association between HIV incidence and socio-economic factors.HIV incidence(number of cases per 1000)ranged from 0.6(Buhera district)to 13.30(Mangwe district).Spatial clustering of HIV incidence was observed(Global Moran’s I=-0.150;Z score 3.038;p-value 0.002).Significant clusters of HIV were observed at district level.HIV incidence and its association with socio-economic factors varied across the districts except percentage of females unemployed.Intervention programmes to reduce HIV incidence should address the identified socio-economic factors at district level. | Tawanda Manyangadze Moses J Chimbari Emmanuel Mavhura | 2021 | Journal of Geographical Research2021,4,3: | 0 |
| 11 | Structural Design,Optimization and Analysis of Robotic Arm Via Finite Elements.显示文摘The study set out to determine the optimum architecture of a robotic arm link based on weight and payload and perform vibrational and stress analyses on the resultant shape.Findings showed the effectiveness of topology optimization in preliminary stages of structural design.The subsequent linear static analyses confirmed the degree of safety of the robotic arm links.It was also shown that that preload in the actuator wire incorporated in the links can be manipulated to tune the natural frequency of the structure.These findings contribute to the ongoing design of the entire robotic first aid system by providing data,which will be used for selection of components and inspire confidence to proceed with manufacture. | Joseph Garikayi Kurebwa Tawanda Mushiri | 2018 | Progress in Human Computer Interaction2018,1,2: | 0 |
| 12 | Comic Relief, Telling Unwanted Truth to Power and Ethical Journalism: Satire Writing in Print Media in Lesotho显示文摘Satire writing in news comes in with a lot of humour yet and a lot of truth telling.In Lesotho newspapers,Lesotho Times has the Scrutator column and The Post has Muckracker.These are the columns that play the role of providing commentary on any issue trending in the news,more like the editorial but go further to tell the truth but in a manner that lacks seriousness due to the name calling and banter.This study sought to establish the real reason behind satire writing from the point of view of the journalists,newspaper editors,journalism scholars,and consumers of news in Lesotho.The study also sought to explore satire writing in newspaper news in relation to journalism ethics as name calling and labeling is one of the characteristics of satire writing in newspapers.Information was gathered,presented,and analysed qualitatively.Face to face and telephone interviews were carried out with print journalists and their editors as well as with journalism lecturers,journalism students,and newspaper reading citizens.The findings reflect that satire writing is understood differently by society with others regarding it as controversial and others liking it for truth telling.News producers and scholars appreciate it for the license it provides to tell truth outside the straight jacket strictures of political correctness guiding news production. | Tawanda Mukurunge Senate Rapitse | 2019 | Psychology Research2019,9,9: | 0 |